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I am just wondering is there any difference in letting java autobox say an integer:
Integer myInteger = 3; // This will call Integer.valueOf()
or having your code as
Integer myInteger = Integer.valueOf(3);
Is there any micro optimization on this? I know the second one is more explicit, but it is also more unnecessary typing, is there any difference besides this?.
They are equal anyway internally, so use the first variant. Chances are good, that future compiler optimizations may make the first even faster in the future.